russia. the goal is to give them an incentive to choose the better horse, and that is to resolve these issues diplomatically -- a better course, and that is to resolve these issues diplomatically. and i think we are united on that front. >> they set a may 25 trigger date for economic sanctions, but will be sanctions stop putin's ambitions? joining me, a director of russian studies at the kanin institute. >>l this stop? we have tried times with sanctions. it does not seem to be helping much. >> putin has certain geo- political objectives. these sanctions will hurts. they will hurts going forward. in terms of the short-term to strategic objectives, he is not going to be deterred -- >> when you talk about his objectives, what are we talking about? does he want all of ukraine? just to cooler areas? wants allt think he of ukraine. if he wanted to invade ukraine, he could've done earlier. his main objective is to under main -- undermine the legitimacy andhe current government delay the elections. >